JP2002509186A - Hard surface cleaner - Google Patents

Abstract

  (57) [Summary] The present invention relates to a hard surface cleaning composition comprising a non-ionic surfactant, a UV absorber, and a water-soluble anionic polymer. The composition leaves sufficient UV absorber on the surface after cleaning and maintains protection of the surface against the damaging effects of UV light. Preferably, the composition also comprises a hydrotrope such as an aromatic sulfonate and / or an organic solvent such as a glycol ether or a lower aliphatic alcohol.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a hard surface cleaning composition containing a UV absorber.

BACKGROUND OF THE INVENTION Many home furnishings and furnishings are adversely affected by sunlight.
This can lead to discoloration of, for example, curtains, furniture (leather and wood) and wooden floors. The majority of this damage is due to the UV components of sunlight, especially in the UV-B region (28
(0-320 nm). Although similar problems arise in workplace and institutional settings, the present invention will be described with particular reference to the home environment.

[0003] The protection of textiles from UV radiation by treatment with UV absorbers is known. For example, EP 679481 (CIBA-GEIGY): 1
995) relates to the treatment of a fabric with a composition comprising a UV-A compound, an emulsifier, water, and a polysiloxane (ie, silicone) in another aqueous fabric treatment composition, the composition comprising: a) a non-reactive UVA compounds, b) emulsifiers or dispersants for UVA compounds, c) water, d) optionally polysiloxane-based products.

[0004] Broad-spectrum UV absorbers, such as benzophenone derivatives, may be difficult to incorporate into compositions due to poor solubility, cross-reaction with other components, and the like. As mentioned above, it is known that this problem can be overcome by adding a UV absorber to the product in the form of an oily emulsion. Liquid products that are one phase or at least a non-macroemulsion are preferred over macroemulsions due to product stability and appearance. Another problem is directness. Textiles are expected to be easy to treat because they tend to adsorb liquids, but the formulation of hard surface cleaning compositions is because these formulations have a tendency for active ingredients to migrate from the surface as soon as they are applied. More difficult. Accordingly, there is a need to provide new formulations of hard surface cleaning compositions containing UV absorbers.

BRIEF DESCRIPTION OF THE INVENTION The present inventors have shown that the above problems can be overcome by incorporating a UV absorber into a hard surface cleaning composition that also contains a polymer. The use of such a composition leaves sufficient UV absorber on the surface to be cleaned,
It is considered that the influence of the surface damage due to the V light irradiation is reduced.

[0006] Accordingly, a first aspect of the present invention comprises: a) 0.1-50% of a nonionic surfactant; b) 0.00 of a water-soluble anionic polymer having an average molecular weight of less than 1,000,000.
For hard surface cleaning compositions comprising 5-5% (polymer: nonionic surfactant ratio is less than 0.1: 1) and c) 0.01-5% by weight of UV absorber (
All percentages described herein are by weight of the total composition unless otherwise specified).

[0007] A second aspect of the present invention relates to a method of reducing hard surface damage by UV, comprising treating a surface with the above cleaning composition.

It is believed that the presence of the polymer improves the adhesion of the UV absorber to the surface to be cleaned.

DETAILED DESCRIPTION OF THE INVENTION Generally, UV absorbers are effective in the UV-B range, in other words, UV absorbers exhibit high absorption in the wavelength range of 280-320 nm. Preferably, the UV absorber is a benzophenone derivative. More preferably, the UV absorber is 2
-Hydroxy-4-methoxybenzophenone (benzophenone-3). Suitable materials are BASF and Haarmann & Reimer.
& Reimer (H & R).

[0010] Other UV absorbers that are considered suitable for use in the compositions of the present invention include:
Mention may be made of methoxycinnamic esters such as octyl methoxycinnamate, and especially phenylbenzimidazole sulfonic acid. Many laundry detergent compositions contain so-called optical brighteners or brighteners, ie fluorescent compounds that absorb UV light and re-emit it as visible light, especially blue light. Such compounds are not required in the hard surface cleaning compositions of the present invention, so they are termed "UV absorber" and UV
Not included in absorber.

[0011] A suitable amount of UV absorber is greater than 0.01% by weight, preferably at least 0%.
. 05%, more preferably at least 0.08%. Useful effects are rarely obtained in amounts exceeding 2% by weight, preferably at most 1%, more preferably at most 0.5%.

Although the pH of the composition can be in the range of 1.0 to 12, the pH of the composition is preferably 2.0 or higher, most preferably 3.0 or higher. When the pH exceeds 8.5, some U
V absorbers are less effective, but other UV absorbers such as phenylbenzimidazole sulfonic acid can be used effectively up to pH 12. If the pH is lower than 3.0, the hard surface, particularly the enamel surface, may be damaged. The most preferred pH in the composition according to the invention is between about 3.0 and 8.5. Compositions having a pH of about 4 do not require a cationic surfactant. At higher pH, cationic surfactants may be useful to stabilize the product. Bases such as sodium hydroxide or ammonia and / or acids such as citric acid are commonly used to bring the pH to the desired level.

[0013] Advantageously, it is preferred that the composition of the present invention is aqueous and not a macroemulsion. Other components that are preferred for the composition of the present invention are described in more detail below.

Surfactants The compositions of the present invention comprise at least one nonionic surfactant, preferably from 1 to
It is important to include an amount of 30% by weight. Among the nonionic surfactants, amounts of 0.1 to 5% by weight of alkoxylated alcohols, alkoxylated phenols, alkyl-polyglucosides (APG), and amine oxides are used in the compositions of the present invention. Very suitable for.

In one composition according to the present invention, A is used for non-streaking and good foaming properties.
PG is preferred. The preferred amount of APG is such that APG is 0.1-5% by weight of the composition,
Preferably, the amount is 0.1 to 3% by weight, most preferably 0.2 to 2% by weight. Preferred APGs comprise a C8-C16 alkyl chain, wherein greater than 50% by weight of the APG present in the composition of the invention comprises a C12-C14 alkyl APG;
Preferably, the majority of the remaining APG comprises C8-C16 alkyl APG. The preferred degree of polymerization is 1.1 to 1.6, and more preferably 1.3 to 1.5.
Suitable materials include GLUCOPON 425 CS® (Henkel (
HENKEL).

As mentioned above, other suitable nonionic surfactants are alkoxylated alcohols, alkoxylated alkylphenols, or amine oxides. Of these, alkoxylated alcohols are preferred as surfactants. Suitable nonionic surfactant compounds can be generally described as compounds formed by the condensation of a hydrophilic alkylene oxide group with an organic hydrophobic compound, which may be aliphatic or alkylaromatic. The length of the hydrophilic or polyoxyalkylene groups condensed with any particular hydrophobic group can be easily adjusted to obtain a water-soluble compound having the desired degree of balance between hydrophilic and hydrophobic elements. is there. Ethoxylated fatty alcohols are particularly preferred.

Specific examples include condensation products of aliphatic alcohols having from 8 to 22 carbon atoms in either a linear or branched configuration with ethylene oxide, such as 1 to 15 moles per mole of coconut alcohol A coconut alcohol ethylene oxide condensate having ethylene oxide; a condensate of an alkylphenol having an alkyl group containing 6 to 12 carbon atoms with 1 to 25 mol of ethylene oxide per 1 mol of alkylphenol.

Particularly preferred nonionic surfactants include C8-C18 alcohols and 2-1
Condensation products with 2 moles of ethylene oxide. Most preferred alkoxylated alcohol nonionic surfactants are ethoxylated alcohols having a chain length of C9 to C11 and an EO value of at least 5 and less than 10. Particularly preferred nonionic surfactants include the condensation products of C10 alcohols with 5-8 moles of ethylene oxide.

Preferred ethoxylated alcohols have a calculated HLB of 10-16. Mixtures of nonionic surfactants can be used, but it is preferred to use one commercially available surfactant.

Further, the surfactant component can be selected from cationic and / or amphoteric surfactant materials.

[0021] Cationic surfactants can be included in the compositions of the present invention as hygiene actives or to help solubilize the polymer at the aforementioned high pH values.
Generally, cationic surfactants are of the general formula _{R 1 R 2 R 3 R 4} N + X - is a quaternary ammonium salt, all of the groups in the formula is unsubstituted or substituted by a hydroxyl group A hydrocarbon group, at least one of the groups R1 to R4 is a C6 to C22 alkyl, alkaryl, or hydroxyalkyl; at least one of the groups R1 to R4 is a C1 to C4 alkyl or hydroxyalkyl; It is a monovalent anion equivalent.

The cationic surfactant is such that R 1 and R 2 are the same or different C 1 -C 4 alkyl or hydroxyalkyl, R 3 is C 6 -C 22 alkyl, alkaryl, or hydroxyalkyl, and R 4 is C 1 -C 22 alkyl Alkaryl, or hydroxyalkyl, wherein X is a monovalent anion equivalent;
Grade nitrogen compounds are preferred. Preferably, X is a halogen, most preferably chlorine or bromine.

Preferably, R1 and R2 are methyl. In an embodiment of the present invention, R3 is preferably C8-C18 alkyl, more preferably C10-C16 alkyl. In embodiments of the present invention, R4 is preferably methyl, C8-C18 alkyl, or benzyl. Accordingly, the cationic surfactant used is three “short-chain” groups such as methyl and one fat-soluble “long-chain” group, or two “short-chain” groups and a fat-soluble “
It may have two "long chains", where the "long chains" may be either linear or branched hydrocarbons and may contain aromatic rings. A further advantage that the compositions of the present invention include a cationic surfactant is that the preferred cationic surfactant imparts antimicrobial properties to the formulation. Surprisingly, the present inventors have found that the composition according to the invention containing an antibacterial cationic surfactant has a longer lasting hygiene on the surface treated with the composition.

Particularly preferred cationic surfactant compounds include cetyltrimethylammonium bromide (CTAB), cured ditallowdimethylammonium chloride (BARDAC 2).
250), benzalkonium chloride, and mixtures thereof.

[0025] Cationic surfactants containing one aryl substituent are particularly preferred because it is believed that a particularly good antimicrobial effect is obtained.

Typical amounts of cationic surfactant are in the range of 0.05 to 3% by weight of the product. The preferred amount of cationic surfactant is about 1-3% by weight.

While not wishing to limit the present invention by reference to any theory of action, the improved detergency of the nonionic surfactant in the presence of the polymer at acidic pH may be enhanced by the nonionic surfactant. It is thought to be due to the formation of a hydrogen bond complex between the agent and the carboxylic acid groups of the uncharged and undissociated polymer. As the pH rises, the acidic groups of the polymer dissociate and hydrogen bond complexes are no longer formed. In the presence of the cationic surfactant required in some embodiments of the present invention, the negatively charged (ie, carboxylic acid dissociated) polymer interacts with the cationic and nonionic surfactants. It is believed that it can act to form a ternary complex, which deposits a nonionic surfactant on the surface to be soiled and / or cleaned. Although the mechanism is not entirely clear, it is probably due to the interaction of the charged polymer with mixed micelles of cationic and anionic surfactants.

It is believed that the attachment of the complex to the surface has two effects. First, the surfactant concentration on the surface is increased, the cleanability in the initial cleaning cycle is improved, and the so-called initial cleaning effort is reduced. The complex, or at least a portion thereof, remains on the surface after cleaning and has the effect of preventing or reducing redeposition of dirt on the surface, thereby facilitating cleaning of the surface in subsequent cleaning cycles. It is also believed to reduce the "secondary" cleaning effort.

[0029] Optionally, the composition can include one or more amphoteric surfactants, preferably betaines, or other surfactants such as amine oxides and alkylaminoglycinates. Betaines are preferred because of cost, low toxicity, and wide availability. It is believed that the amphoteric surfactant provides a slight synergistic effect with some organic acids (if used) in terms of antimicrobial activity.

Preferably, the total amount of surfactant in the composition of the invention is between 0.1 and 10
%, More preferably 0.5 to 8% by weight, most preferably 0.5 to 4% by weight.

Although the anionic surfactant can be present in a relatively low ratio, it is preferred that anionic surfactant is not included in the composition. As explained in more detail below,
An amount of an anionic surfactant can be used in the form of a soap as part of an antifoam system. Preferably, the composition of the invention other than the above comprises less than 2% by weight, preferably less than 1%, of an anionic surfactant.

Polymers As mentioned above, the polymers according to the invention are water-soluble polymers having an average molecule of less than 1,000,000. Usually, these polymers are polymers having carboxylic acid groups, although other anionic polymers can be used. In the context of the present invention, the anionic polymer is a polymer capable of carrying a negative charge or a protonated form of such a polymer. Mixtures of polymers can also be used.

Preferred polymers in embodiments of the present invention are those readily available from the market. Particularly useful are polymers of acrylic acid or methacrylic acid or maleic anhydride, or copolymers of one or more of these or with other monomers.

[0034] Particularly suitable polymers include polyacrylic acid, polymaleic anhydride, and copolymers of any of the above with ethylene, styrene, and methyl vinyl ether.

The most preferred polymer is a maleic anhydride copolymer, preferably a copolymer formed from styrene, acrylic acid, methyl vinyl ether, and ethylene.

Preferably, the average molecular weight of the polymer is at least 5,000, more preferably at least 50,000, and most preferably more than 100,000. VERSICOL E-11®, a polyacrylic acid (from Allied Colloids), has been found to be a suitable polymer for use in the composition according to the present invention.

Generally, the surfactant-based cleaning composition is present in the product at least 0.01%.
Contains polymer by weight. The distinct advantage of the presence of the polymer in terms of improved cleaning properties can be seen even at very low amounts of polymer and surfactant. This low concentration threshold property is particularly advantageous in applications of the invention where considerable dilution is expected, such as floor cleaning.

Preferably, the amount of polymer is from 0.05 to 4.0% by weight, at which amount the anti-soil redeposition begins to become particularly pronounced. More preferably at least 0.1% by weight
Of the polymer, most preferably at least 0.2% by weight. We believe that amounts of polymer greater than 3% by weight or even greater than 2% by weight are not very beneficial to cleanability, taking into account normal dilution factors, and increase the cost of the composition. Make sure you do. It is believed that large amounts of polymer increase the viscosity of the product and hinder the wettability and penetration of the product with soil. However, for highly concentrated products that are significantly diluted before use, the initial amount of polymer can be up to 5% by weight.

As mentioned above, the molecular weight of the polymer is preferably less than 1,000,000 daltons. It is believed that the benefit of the polymer to cleaning performance decreases as the molecular weight increases.

Solvents One or more solvents can be present in the compositions of the present invention. The presence of a solvent is often beneficial.

The composition of the present invention preferably comprises 25% by weight or less of a glycol ether or alkanol solvent of the general formula: R1-O- (EO) _m- (PO) _n -R2, wherein R1 and R2 are C1 to C6 alkyl or H is independent, but both are not hydrogen, m and n are independently 0 to 5, E represents an ethylene group, and P represents a propylene group.

The alcohol solvent is selected from C1 to C6 branched or straight chain alkanols, and is more preferably selected from one or more of methanol, ethanol, propanol, or butanol. Ethanol and isopropanol are particularly preferred.

Preferably, the solvent is diethylene glycol mono-n-butyl ether (commercially available as Butyl Digol®), ethylene glycol mono-n-butyl ether, and propylene glycol mono-
at least one glycol ether solvent selected from the group comprising n-butyl ether and mixtures thereof. The overall amount of these solvents in the detergent composition prepared according to the present invention is preferably no more than 25% by weight, more preferably no more than 20% by weight, and most preferably no more than 10% by weight. On the other hand, the composition preferably contains at least 1% by weight of these solvents, more preferably at least 2% by weight, and most preferably at least 5% by weight.

Antimicrobial Agents Optionally, antimicrobial agents can be used in the compositions of the present invention. Preferred antibacterial agents are
The quaternary ammonium compounds and / or phenol compounds described above.

Typical amounts of antimicrobial agents in the formulation range from 0.01 to 8% by weight,
-4% by weight, especially about 2% by weight, is preferred for conventional compositions, so-called "concentrated" products use up to two or four times this concentration. Both normal and concentrated products can be used undiluted, but it is common for users to dilute these products before use. For sprayable products that are rarely diluted before use,
The concentration of the antimicrobial agent ranges from 0.05 to 0.5% by weight.

In general, regardless of the product concentration, the ratio of nonionic surfactant to antimicrobial is 50:
It is preferably from 1 to> 1: 1, more preferably from 30: 1 to> 1: 1, i.e. an excess of nonionic surfactant relative to the antimicrobial agent.

If the amount of antimicrobial is not very high, it is advantageous for the composition to include a preservative. A preferred preservative is PROXEL LV® or FORMOL®.

Insecticide If the composition of the present invention substantially comprises a means for depositing the surfactant / polymer complex on the surface to be cleaned, the composition of the present invention comprises components which are desirably deposited on the surface. It is expected that further inclusions are possible. A further component of the preferred class is insect repellents.

Particularly suitable insect repellents include mint, especially Mentha arvensis
, Mentha piperita, Mentha spicata and Me
essential oils such as ntha cardica; yeast Indian lemongrass oil;
Lemon oil, citronella oil, cedarwood oil, and pine oil; terpenoids,
In particular, mention is made of limonene, carvone, cineol, linalool, rubber camphor, citronellal, α- and β-terpenol, phencoric acid, borneol, isoborneol, bornyl acetate, and isobornyl acetate. The most preferred insect repellents are terpenoids, especially limonene. Many of the above oils are known to exhibit antibacterial effects as well as insect repellents and / or fragrances,
Therefore, two or more functions can be obtained.

The required amount of insect repellent depends on the nature of the substance used. In the case of essential oils and terpenoids, amounts of 0.1 to 5% of the product are preferred.

Minor or Optional Ingredients The compositions according to the present invention include other minor ingredients, which are not essential, but either either aid cleaning performance or maintain the physical and chemical stability of the product. be able to.

For example, the composition can include a detergent builder. Generally, when used, it is preferred that the builder be from 0.1 to 25% by weight of the composition.

Sequestering agents such as ethylenediaminetetraacetate, aminopolyphosphonates (such as those of the DEQUEST® type), and phosphates, and various polyfunctional organic acids and salts are also optional. Can be used. It is believed that the hygiene performance of the composition is improved by the presence of the sequestering agent.

A hydrotrope is a useful optional ingredient. It is believed that the use of hydrotropes can increase the cloud point of the composition without the need for an anionic surfactant. Simultaneous use of anionic surfactants and betaine seems less desirable as these surfactants interact to form a complex that inhibits the synergistic hygiene effect of the amphoteric surfactant and the organic acid. It is. Preferably, the composition of the present invention is free of anionic surfactant when betaine is present, or comprises a small amount of anionic surfactant of less than 50% of the remaining weight of surfactant present,
Preferably, it is less than 50% of the betaine weight in the product. Anionic surfactants, when present in an amount of less than 50% by weight of the total surfactant present, are solely compatible with the compositions of the present invention based on ethoxylated alcohols, but are not compatible with polymers. These amounts should be minimized in view of the interaction of Preferably the amount of anionic surfactant is less than 30% by weight of the total surfactant content of the composition, more preferably less than 10% of the surfactant content. It is possible to prepare compositions that contain little or no anionic surfactant.

Suitable hydrotropes include alkali metal toluene sulfonates, urea,
Xylene and cumene sulfonates of alkali metals, polyglycols,> 20EO ethoxylated alcohols, short chain, preferably C2 to C5 alcohols, and glycols. Preferred among these hydrotropes are sulphonates, especially cumenesulphonate, xylenesulphonate and toluenesulphonate. For purposes of the present invention, aromatic sulfonate hydrotropes are not considered as anionic surfactants.

Typical amounts of hydrotrope range from 0 to 5% for sulfonates. In contrast, ureas and alcohols require larger amounts. Hydrotropes are not always necessary for dilute sprayable products, but may be necessary when using lower EO or longer chain alkyl ethoxylates or when the cloud point must be significantly increased. . Generally, the cloud point of the final composition is between 45 and
The temperature is preferably within the range of 50 ° C. Cumene sulfonate is the most preferred hydrotrope. When the amount of ethoxylated nonionic surfactant is about 7% by weight, the corresponding amount of SCS is generally in the range of 0.6-0.8% by weight, and the amount of ethoxylated nonionic surfactant is about 14% by weight. %, The corresponding amount of SCS is generally 1.
It is in the range of 0 to 1.2% by weight.

In general, a further optional component of the composition according to the invention is a foam control material, which can be used in the composition according to the invention, which tends to generate excessive foam when used. One example of a foam control material is soap. Soaps are salts of fatty acids, including alkali metal soaps such as sodium, potassium, ammonium and alkanol ammonium salts of C8-C24 fatty acids, preferably C10-C20 fatty acids. Particularly useful are the sodium and potassium salts of the fatty acid mixtures derived from coconut and peanut oils, and the mono, di, and triethanolamine salts. If used, the amount of soap can be at least 0.005% by weight of the composition, preferably from 0.5% to 2% by weight.

Still other examples of foam control materials are organic solvents, hydrophobic silicas, silicone oils, and hydrocarbons.

Another foam control material includes a mixed EO / PO nonionic surfactant. Suitable ethoxylated / propoxylated nonionic surfactants include the condensation products of aliphatic alcohols having from 8 to 22 carbon atoms in either a linear or branched configuration with ethylene oxide and propylene oxide. Examples thereof include condensation products of coconut oil and ethylene oxide / propylene oxide in which the total of ethylene oxide and propylene oxide is 2 to 15 moles per mole of coconut alcohol. The molar ratio between ethylene oxide and propylene oxide of these condensation products is 1
: 5 to 5: 1.

Particularly preferred ethoxylated / propoxylated nonionic surfactants include molecules of the general formula: RO (EO) _n (PO) _m H, wherein R has an average carbon chain length of C8 to C14, preferably C9-
C11 is an alkyl residue, EO is an ethylene oxide residue, and n is 1
-10, PO is a propylene oxide residue, and m is 1-5. Particularly preferred materials have C9-C11, 5-8EO, 1-3PO, and most preferred materials have C9-C11, 6EO, 2PO.

The amount of ethoxylated / propoxylated nonionic surfactant used in the compositions of the present invention is generally between 2 and 10% by weight, most preferably between 3 and 6% by weight.

[0062] The preferred weight ratio of ethoxylated surfactant to ethoxylated / propoxylated surfactant in the composition is in the range of 4: 1 to 2: 1 and the ethoxylated surfactant is ethoxylated / propoxylated. Present in excess by weight than the lubricated surfactant.

In general, bleaching compounds have no useful effect in the cleaning compositions of the present invention and are therefore not normally used. If an abrasive is present, it is difficult to achieve compatibility with the object of the present invention. Furthermore, such components and other water-insoluble solid inorganic compounds tend to leave traces on the surface that are difficult to remove. Therefore, these compounds are also not used.

Preferred Compositions Preferred compositions according to the invention have a pH of 3 to 8, a) 2 to 15 EO ethoxylated C8 to C18 alcohol nonionic surfactant 1
B) at least one of acrylic acid, methacrylic acid, or maleic anhydride and at least one (co) polymer of acrylic acid, methacrylic acid, maleic anhydride, ethylene, styrene, methyl vinyl ether. A certain average molecular weight of 1,000
0.1 to 4% by weight of a water-soluble anionic polymer of less than 2,000 c) 0.01 to 1 UVA-B absorbing material, preferably a benzophenone derivative
%) D) less than 1% by weight of an anionic surfactant; and e) 0.1-4% by weight of a hydrotrope.

Another preferred composition is prepared as compositions A and B below.

[0066]

[Table 1]

The composition can be prepared as a substantially dry powder, to which water is added to obtain the composition of the present invention.

In order that the present invention may be better understood, the following examples illustrate the present invention.

EXAMPLES To demonstrate the effectiveness of the present invention, the compositions of the present invention were compared to products available on the Brazilian market. The usual strong cleaner in this market is “Veja®
"And Reckitt & Colman
) Available from the company. A further known product is "Domex (R)", manufactured by Lever.

Example 1 UV Absorption The compatibility of the H & R UV absorber Benzophenone-3 with Veja was tested by simple mixing. Due to the high pH of this product, the absorbent was expected to be somewhat incompatible. Lome's product Domex has a pH of about 4. Thus, it is expected to be more compatible with UV absorbers. For comparison purposes, the products given in Table 1 below (comparative examples) were used.

[0071]

[Table 2] The Domex product was formulated as follows.

[0072]

[Table 3]

In the above specific formulation, the order of addition is important because the UV absorbing material is difficult to dissolve in water. In the examples, a premix of the UV absorber and the solvent is prepared and the remaining components are mixed before adding the UV absorber / solvent. In the case of the comparative formulation (comparative example), a pre-mix (UV absorber / butyl digol at a concentration of 10%)
0.5 g of an absorbent mixed with 5 g of butyl digol) is added after all other ingredients,
The final product concentration was 0.01-1%.

UV light absorption was measured with a spectrometer. Table 3 shows the results.

[0075]

[Table 4]

From the measurements in Table 3, it is clear that the absorbent is effective in Domex and less effective in reducing the absorbance, ie the Veja product (no polymer, higher pH value). Further, when the discoloration of the product is visually observed,
The ega product was found to be somewhat incompatible. It can be seen that the comparative product without the absorbing material (Comparative Example) has little or no UV absorption.

Example 2: Cleaning Performance To demonstrate that the product of the present invention is an effective cleaner, clean the preferred product of the present invention and an example prepared by mixing Vega with a benzophenone-3 UV absorber. Effort was measured. Formica soiled in a standard way (F
The results of the effort (units N · s) required to clean either the ormica® or enamel surface are shown in Table 4 below.

[0078]

[Table 5]

From the above examples, it can be seen that the preferred compositions of the present invention are effective cleaners and also effectively reduce UV exposure of surfaces treated with them.

[Procedural Amendment] Submission of translation of Article 34 Amendment of the Patent Cooperation Treaty

[Submission date] December 17, 1999 (Dec. 17, 1999)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE , KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW (72) Inventors Jurhorn, Robert Jan Reignier Nmeel-3133-Ar, Netherlands・ Teh Flaardingen, Olivier Juan Nordlaan 120, Unilever Research Fhlardingen F-term (reference) 4H003 AB03 AC08 AC23 DA05 EA21 EB08 EB09 EB22 EB28 EB30 EB32 ED02 ED29 FA15 FA28

Claims (10)

[Claims] 1. A) 0.1 to 50% by weight of a nonionic surfactant; b) 0.0 of a water-soluble anionic polymer having an average molecular weight of less than 1,000,000.
A hard surface cleaning composition comprising from 0.5 to 5% by weight (the ratio of polymer to nonionic surfactant is 0.1: 1 or less) and c) 0.01 to 5% by weight of a UV absorber. 2. The composition according to claim 1, wherein the polymer is a polymer of acrylic acid, methacrylic acid, or maleic anhydride, or a copolymer of one or more of these or a copolymer with another monomer. 3. The composition of claim 2, wherein said polymer is selected from the group comprising polyacrylic acid, polymaleic anhydride, and copolymers of any of the foregoing with ethylene, styrene, and methyl vinyl ether. . 4. The composition according to claim 1, further comprising 0.005 to 5% by weight of a cationic surfactant. 5. The composition according to claim 1, which has a pH of 3 to 12. 6. A compound represented by the general formula: R1-O- (EO) m- (PO) n-R2 (wherein R1 and R2 are each independently C1-6 alkyl or H, but both are not hydrogen. , M and n are independently 0 to 5). A composition according to any one of claims 1 to 5, further comprising a glycol ether or alkanol solvent. 7. The composition according to claim 1, wherein the UV absorber comprises a benzophenone derivative. 8. The composition according to claim 7, comprising 2-hydroxy-4-methoxybenzophenone. 9. The composition according to claim 7, comprising phenylbenzimidazole sulfonic acid. 10. A method for reducing UV damage to a hard surface, comprising treating a surface with a cleaning composition according to any one of claims 1 to 9.